Low-dose, Prospective Triggered High-pitch Spiral Coronary Computed Tomography Angiography. Comparison with Retrospective Spiral Technique

Abstract

Rationale and Objectives: Cardiac computed tomographic angiography algorithms emphasize radiation reduction while maintaining diagnostic image quality (IQ). The aim of this study was to evaluate IQ and interreader variability using prospective electrocardiographically triggered high-pitch spiral cardiac computed tomographic angiography (FLASH-CT) compared to retrospective electrocardiographic gating (RETRO-CT) for coronary artery disease evaluation in a patient population including overweight and obese individuals. Materials and Methods: Seventy patients (24 women; mean age, 60 years) matched for gender, age, body mass index (27.4 ± 5.5 kg/m 2), and calcium score (184 ± 328) underwent cardia..